US20080059701A1 - Data Transmission In An Arrangement Comprising A Tachograph - Google Patents
Data Transmission In An Arrangement Comprising A Tachograph Download PDFInfo
- Publication number
- US20080059701A1 US20080059701A1 US11/571,215 US57121505A US2008059701A1 US 20080059701 A1 US20080059701 A1 US 20080059701A1 US 57121505 A US57121505 A US 57121505A US 2008059701 A1 US2008059701 A1 US 2008059701A1
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- United States
- Prior art keywords
- interface
- data
- memory device
- external
- tachograph
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C5/00—Registering or indicating the working of vehicles
- G07C5/02—Registering or indicating driving, working, idle, or waiting time only
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C5/00—Registering or indicating the working of vehicles
- G07C5/08—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
- G07C5/0841—Registering performance data
- G07C5/085—Registering performance data using electronic data carriers
- G07C5/0858—Registering performance data using electronic data carriers wherein the data carrier is removable
Definitions
- the invention relates to an arrangement comprising a tachograph which stores driver-related data digitally in an internal first memory, with a mobile external data memory device which has a second memory, with an external first interface at the tachograph and an external second interface at the external memory device which corresponds with the first interface so that data can be transmitted between the first interface and the second interface.
- a method for transmitting data from a tachograph which stores driver-related data digitally in an internal memory to a mobile data memory device by means of an external first interface at the tachograph and an external second interface at the external memory device which corresponds with the first interface so that data can be transmitted between the first interface and the second interface is the subject matter of the invention.
- the new generation of tachographs does not store data by recording on a paper record chart as previously but in digital form electronically in a memory.
- the so called digital tachograph to be introduced shortly on the market operates with an internal memory and a chip card, that is to say an external storage medium, when storing the data.
- the chip card is completely accommodated by the digital tachograph and is completely isolated from the environment by means of mechanical provisions during the data transmission between the internal memory of the tachograph and the memory of the chip card. This is intended to prevent manipulations.
- the advantage of using a chip card consists in that the latter can be completely isolated from the environment. However, the great expenditure associated with the isolation during the data transmission is disadvantageous.
- the data card must be accommodated completely by the digital tachograph which, accordingly, must have a device for automatically receiving and delivering.
- it must be possible to close the opening through which the data card enters into the tachograph securely against manipulation and relevant regulations require that this shutter is locked in the closed position.
- the high degree of mechanical security precautions against manipulation is associated with high costs and great complexity.
- the tachograph has a first encrypting unit which is associated with the first external interface and the memory device has a second encrypting unit which is associated with the second external interface so that data can be transmitted encrypted between the first interface and the second interface.
- the invention proposes a method of the type initially mentioned in which the tachograph has a first encrypting unit which is associated with the first external interface and the memory device has a second encrypting unit which is associated with the second external interface and data which are transmitted from the tachograph to the memory device are encrypted by means of the first encrypting unit before the transmission and data which are transmitted from the memory device to the tachograph are encrypted by means of the second encrypting unit before the transmission.
- both the arrangement according to the invention and the method according to the invention have the serious advantage that mechanical protection against manipulations, particularly a protection of electrical contacts of the first interface and the second interface, is obsolete.
- the costs are considerably lowered and the space required by the device is distinctly reduced.
- the keys for ejecting the chip cards needed in a conventional digital tachograph are no longer required which advantageously creates further space on the front panel for additional operating elements.
- the life of the overall device is no longer limited by the sensitive mechanism.
- the protection against manipulation is exclusively provided by the encryption before the data transmission. Picking up electrical signals with manipulatory intent, therefore, will not lead to the desired success.
- the second memory of the external memory device can be suitably between 32 MBytes and 2 GBytes. Memory space not needed for the core application can be suitably used for other applications.
- the encryption can be carried out advantageously by means of triple-DES (data encryption standard) and asymmetric RSA encryption algorithms.
- the first external interface and the second external interface are constructed in such a manner that they can form a plug-in connection with one another via which data can be transmitted.
- the plug-in connection can be constructed as RS232.
- Such a plug-in connection is particularly suitably constructed as USB (universal serial bus) connection wherein, in particular, the first interface at the tachograph can be constructed as socket and the second interface at the memory device can be constructed as plug.
- USB interface results in an advantageously high transmission rate and, at the same time, this arrangement is particularly rugged mechanically, particularly if, as preferred, the socket is arranged at the tachograph and the plug is arranged at the external memory device. In this manner, there is no element protruding at the tachograph either.
- a further increase in stability and additional increase in the life of the overall arrangement is obtained when the first external interface and the second external interface are constructed in such a manner that they can exchange data with one another cablelessly.
- the two interfaces involved can be suitably constructed as wireless USB or Bluetooth chip arrangements.
- wireless USB connection data transmission can already take place at a distance of 50 m.
- a wireless USB connection can be suitably produced in accordance with the WUSB standard.
- the data memory device can be advantageously supplied with the required operating power by means of an integrated transponder.
- the external memory device can have an exchangeable storage medium so that, in particular, driver-related data can also be moved independently of the external memory device.
- the external memory device can essentially have the function of an adapter or of a terminal for transmitting data from the memory of a tachograph to an exchangeable storage medium, wherein the external storage medium essentially takes over the function of encryption.
- a further advantage of this arrangement lies in the fact that the memory device now only needs to be provided for each tachograph in operation and it is no longer necessary for each user to have a separate device.
- the memory device has at least one light-emitting means which emits light or flashes depending on whether a data transmission is taking place.
- a second light-emitting means could be additionally used as indicator for a correct voltage supply.
- this connection is constructed in such a manner that the memory device is supplied with operating power from the tachograph. In this manner, the correct operation is no longer dependent on the charge state of a battery in the memory device.
- man-readable information is applied as print on the memory device.
- This can be, for example, an identification number which is allocated to the vehicle driver.
- the external memory device is suitably constructed in small format and provided at the place where the printed-on man-readable information is located with a transparent layer domed in the direction of a reader, which allows the print to appear optically larger and thus facilitates the reading. So that an unauthorized user does not obtain access to encrypted data, either, it is suitable that after a connection has been established between the first interface and the second interface, the tachograph requests a user to input a code by means of which the user authenticates himself. It is only after this authentication code has been input correctly that data transmission is possible.
- FIG. 1 shows a diagrammatic representation of an arrangement according to the invention comprising a digital tachograph and an external memory device which can be connected to one another by means of a plug-in connection,
- FIG. 2 shows an arrangement comprising a digital tachograph and an external memory device in a diagrammatic representation with cableless data transmission
- FIG. 3 shows a diagrammatic representation of the operation of an arrangement according to the invention and of the method according to the invention, respectively.
- the arrangements 1 according to the invention comprise a digital tachograph 2 and in each case an external data memory device 3 .
- the digital tachograph 2 is shown in a front view, a front panel 4 exhibiting a printer drawer 5 , various operating elements 6 , a display 7 and two first interfaces 9 constructed as socket 8 .
- the data memory device 3 is provided with a second interface 10 constructed as plug 11 which corresponds with the first interface 8 in such a manner that plugging the plug 11 into the socket 8 establishes a plug-in connection and contacts of the first interface 9 establish an electrically conductive connection with contacts of the second interface 10 .
- the resultant plug-in connection 13 is constructed as universal serial bus.
- the data memory device 3 is equipped with a light-emitting means 15 which, by flashing, indicates to a user that a data transmission is taking place.
- FIG. 2 The exemplary embodiment of the invention, shown in FIG. 2 , essentially corresponds to that of FIG. 1 , wherein the first interface 9 and the second interface 10 exchange data with one another by means of a cableless connection 20 .
- the data memory device 3 is provided with writing 61 covered with a transparent layer 60 domed in the direction of a reader.
- the layer 60 optically enlarges the writing 61 in a manner comparable to a lens.
- the tachograph 2 has a connection 20 to the data memory device 3 for data transmission.
- the tachograph 2 has a first processor 30 which has a controlling, monitoring or regulating connection to a first memory 31 , a first encrypting unit 32 and a first interface 9 .
- the data memory device 3 similarly has a second processor 40 which has a controlling, regulating or monitoring connection to a second memory 41 , a second encrypting unit 42 and the second interface 10 .
- the second memory 41 is a storage medium 45 which can be separated from the data memory device 3 .
- Data 50 transmitted by the tachograph 2 are conveyed under control of the first processor 30 from the first memory 31 to the first encrypting unit 32 where they are encrypted and then transferred from the first interface 9 to the second interface 10 .
- the second processor 40 controls a process in the data memory device 3 so that data 50 from the second memory 41 , before being conveyed from the second interface 10 to the first interface 9 , are first encrypted in the second encrypting unit 42 .
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Time Recorders, Dirve Recorders, Access Control (AREA)
- Storage Device Security (AREA)
Abstract
Description
- This application is a U.S. national stage application of International Application No. PCT/EP2005/052394 filed May 25, 2005, which designates the United States of America, and claims priority to
German application number 10 2004 030 869.1 filed Jun. 25, 2004, the contents of which are hereby incorporated by reference in their entirety. - The invention relates to an arrangement comprising a tachograph which stores driver-related data digitally in an internal first memory, with a mobile external data memory device which has a second memory, with an external first interface at the tachograph and an external second interface at the external memory device which corresponds with the first interface so that data can be transmitted between the first interface and the second interface. In addition, a method for transmitting data from a tachograph which stores driver-related data digitally in an internal memory to a mobile data memory device by means of an external first interface at the tachograph and an external second interface at the external memory device which corresponds with the first interface so that data can be transmitted between the first interface and the second interface, is the subject matter of the invention.
- The new generation of tachographs does not store data by recording on a paper record chart as previously but in digital form electronically in a memory. The so called digital tachograph to be introduced shortly on the market operates with an internal memory and a chip card, that is to say an external storage medium, when storing the data. The chip card is completely accommodated by the digital tachograph and is completely isolated from the environment by means of mechanical provisions during the data transmission between the internal memory of the tachograph and the memory of the chip card. This is intended to prevent manipulations. The advantage of using a chip card consists in that the latter can be completely isolated from the environment. However, the great expenditure associated with the isolation during the data transmission is disadvantageous. The data card must be accommodated completely by the digital tachograph which, accordingly, must have a device for automatically receiving and delivering. In addition, it must be possible to close the opening through which the data card enters into the tachograph securely against manipulation and relevant regulations require that this shutter is locked in the closed position. The high degree of mechanical security precautions against manipulation is associated with high costs and great complexity.
- It is the object of the invention to render an arrangement and a method of the type initially mentioned to be less complex and more inexpensive without compromises with regard to the security against manipulation.
- To achieve the object, it is proposed according to the invention that the tachograph has a first encrypting unit which is associated with the first external interface and the memory device has a second encrypting unit which is associated with the second external interface so that data can be transmitted encrypted between the first interface and the second interface. In addition, the invention proposes a method of the type initially mentioned in which the tachograph has a first encrypting unit which is associated with the first external interface and the memory device has a second encrypting unit which is associated with the second external interface and data which are transmitted from the tachograph to the memory device are encrypted by means of the first encrypting unit before the transmission and data which are transmitted from the memory device to the tachograph are encrypted by means of the second encrypting unit before the transmission. Compared with the known digital tachograph, both the arrangement according to the invention and the method according to the invention have the serious advantage that mechanical protection against manipulations, particularly a protection of electrical contacts of the first interface and the second interface, is obsolete. Due to the elimination of the very complex chip card mechanism for pulling in and delivering the data card, the costs are considerably lowered and the space required by the device is distinctly reduced. The keys for ejecting the chip cards needed in a conventional digital tachograph are no longer required which advantageously creates further space on the front panel for additional operating elements. In addition, the life of the overall device is no longer limited by the sensitive mechanism. According to the invention, the protection against manipulation is exclusively provided by the encryption before the data transmission. Picking up electrical signals with manipulatory intent, therefore, will not lead to the desired success. The second memory of the external memory device can be suitably between 32 MBytes and 2 GBytes. Memory space not needed for the core application can be suitably used for other applications. The encryption can be carried out advantageously by means of triple-DES (data encryption standard) and asymmetric RSA encryption algorithms.
- An advantageous development of the invention provides that the first external interface and the second external interface are constructed in such a manner that they can form a plug-in connection with one another via which data can be transmitted. Such an embodiment is particularly simple and rugged and can be carried out by means of relevant plug-in connections, for example, the plug-in connection can be constructed as RS232. Such a plug-in connection is particularly suitably constructed as USB (universal serial bus) connection wherein, in particular, the first interface at the tachograph can be constructed as socket and the second interface at the memory device can be constructed as plug. The construction as USB interface results in an advantageously high transmission rate and, at the same time, this arrangement is particularly rugged mechanically, particularly if, as preferred, the socket is arranged at the tachograph and the plug is arranged at the external memory device. In this manner, there is no element protruding at the tachograph either. A further increase in stability and additional increase in the life of the overall arrangement is obtained when the first external interface and the second external interface are constructed in such a manner that they can exchange data with one another cablelessly. This option, which is only obtained with the association according to the invention of encrypting units with the interfaces has the advantage, on the one hand, that no plug-in capability for the interface connection needs to be provided at the front panel of the tachograph and, on the other end, it results in much more convenient handling of both devices. For the cableless data transmission according to the arrangement according to the invention or the method according to the invention, the two interfaces involved can be suitably constructed as wireless USB or Bluetooth chip arrangements. When using a wireless USB connection, data transmission can already take place at a distance of 50 m. In addition such an arrangement is also particularly inexpensive compared with Bluetooth. A wireless USB connection can be suitably produced in accordance with the WUSB standard.
- The data memory device can be advantageously supplied with the required operating power by means of an integrated transponder.
- To obtain limitless flexibility, the external memory device, in turn, can have an exchangeable storage medium so that, in particular, driver-related data can also be moved independently of the external memory device. In this manner, the external memory device can essentially have the function of an adapter or of a terminal for transmitting data from the memory of a tachograph to an exchangeable storage medium, wherein the external storage medium essentially takes over the function of encryption. A further advantage of this arrangement lies in the fact that the memory device now only needs to be provided for each tachograph in operation and it is no longer necessary for each user to have a separate device.
- So that the user can conveniently check the correct operation of the memory device, it is suitable if the latter has at least one light-emitting means which emits light or flashes depending on whether a data transmission is taking place. A second light-emitting means could be additionally used as indicator for a correct voltage supply.
- Particularly in the case where the two interfaces are constructed as plug-in connection, it is suitable if this connection is constructed in such a manner that the memory device is supplied with operating power from the tachograph. In this manner, the correct operation is no longer dependent on the charge state of a battery in the memory device.
- To avoid false associations of memory devices with vehicles or drivers, it is appropriate if man-readable information is applied as print on the memory device. This can be, for example, an identification number which is allocated to the vehicle driver. For particularly convenient handling, the external memory device is suitably constructed in small format and provided at the place where the printed-on man-readable information is located with a transparent layer domed in the direction of a reader, which allows the print to appear optically larger and thus facilitates the reading. So that an unauthorized user does not obtain access to encrypted data, either, it is suitable that after a connection has been established between the first interface and the second interface, the tachograph requests a user to input a code by means of which the user authenticates himself. It is only after this authentication code has been input correctly that data transmission is possible.
- In the text which follows, the invention is explained in greater detail by means of two exemplary embodiments, referring to the drawings in which:
-
FIG. 1 shows a diagrammatic representation of an arrangement according to the invention comprising a digital tachograph and an external memory device which can be connected to one another by means of a plug-in connection, -
FIG. 2 shows an arrangement comprising a digital tachograph and an external memory device in a diagrammatic representation with cableless data transmission, and -
FIG. 3 shows a diagrammatic representation of the operation of an arrangement according to the invention and of the method according to the invention, respectively. - The arrangements 1 according to the invention, shown in
FIGS. 1 and 2 , comprise adigital tachograph 2 and in each case an externaldata memory device 3. Thedigital tachograph 2 is shown in a front view, a front panel 4 exhibiting aprinter drawer 5,various operating elements 6, adisplay 7 and two first interfaces 9 constructed as socket 8. - The
data memory device 3 is provided with asecond interface 10 constructed asplug 11 which corresponds with the first interface 8 in such a manner that plugging theplug 11 into the socket 8 establishes a plug-in connection and contacts of the first interface 9 establish an electrically conductive connection with contacts of thesecond interface 10. The resultant plug-inconnection 13 is constructed as universal serial bus. - The
data memory device 3 is equipped with a light-emitting means 15 which, by flashing, indicates to a user that a data transmission is taking place. - The exemplary embodiment of the invention, shown in
FIG. 2 , essentially corresponds to that ofFIG. 1 , wherein the first interface 9 and thesecond interface 10 exchange data with one another by means of acableless connection 20. - The
data memory device 3 is provided with writing 61 covered with atransparent layer 60 domed in the direction of a reader. Thelayer 60 optically enlarges the writing 61 in a manner comparable to a lens. - In the diagrammatic representation of the operational relationships of the arrangement 1 of
FIG. 3 , thetachograph 2 has aconnection 20 to thedata memory device 3 for data transmission. Thetachograph 2 has afirst processor 30 which has a controlling, monitoring or regulating connection to afirst memory 31, afirst encrypting unit 32 and a first interface 9. Thedata memory device 3 similarly has asecond processor 40 which has a controlling, regulating or monitoring connection to asecond memory 41, asecond encrypting unit 42 and thesecond interface 10. Thesecond memory 41 is astorage medium 45 which can be separated from thedata memory device 3.Data 50 transmitted by thetachograph 2 are conveyed under control of thefirst processor 30 from thefirst memory 31 to thefirst encrypting unit 32 where they are encrypted and then transferred from the first interface 9 to thesecond interface 10. Analogously, thesecond processor 40 controls a process in thedata memory device 3 so thatdata 50 from thesecond memory 41, before being conveyed from thesecond interface 10 to the first interface 9, are first encrypted in thesecond encrypting unit 42.
Claims (13)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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DE102004030869 | 2004-06-25 | ||
DE102004030869.1 | 2004-06-25 | ||
DE102004030869A DE102004030869A1 (en) | 2004-06-25 | 2004-06-25 | Data transmission in an arrangement with a tachograph |
PCT/EP2005/052394 WO2006000507A1 (en) | 2004-06-25 | 2005-05-25 | Data transmission in an arrangement comprising a tachograph |
Publications (2)
Publication Number | Publication Date |
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US20080059701A1 true US20080059701A1 (en) | 2008-03-06 |
US8200984B2 US8200984B2 (en) | 2012-06-12 |
Family
ID=34969479
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US11/571,215 Expired - Fee Related US8200984B2 (en) | 2004-06-25 | 2005-05-25 | Data transmission in an arrangement comprising a tachograph |
Country Status (8)
Country | Link |
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US (1) | US8200984B2 (en) |
EP (1) | EP1759357A1 (en) |
JP (1) | JP2008503814A (en) |
CN (1) | CN101095169A (en) |
BR (1) | BRPI0512618A (en) |
DE (1) | DE102004030869A1 (en) |
RU (1) | RU2387014C2 (en) |
WO (1) | WO2006000507A1 (en) |
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US9189898B2 (en) * | 2009-08-18 | 2015-11-17 | Continental Automotive Gmbh | Tachograph having an interface for an external data input device |
US20110137517A1 (en) * | 2009-12-07 | 2011-06-09 | Continental Automotive Gmbh | Method for indicating a discrepancy for driving data in a motor vehicle, and system for carrying out the method |
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US8867196B2 (en) | 2010-12-20 | 2014-10-21 | Continental Automotive Gmbh | Onboard information system for vehicles |
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Also Published As
Publication number | Publication date |
---|---|
RU2007102685A (en) | 2008-07-27 |
RU2387014C2 (en) | 2010-04-20 |
BRPI0512618A (en) | 2008-03-25 |
WO2006000507A1 (en) | 2006-01-05 |
JP2008503814A (en) | 2008-02-07 |
US8200984B2 (en) | 2012-06-12 |
DE102004030869A1 (en) | 2006-01-19 |
EP1759357A1 (en) | 2007-03-07 |
CN101095169A (en) | 2007-12-26 |
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